The challenge grows with each version..... It all started with TETRIS. The nerve-racking game of maneuvering and quick action. And it just kept getting tougher with WellTris. Then along comes FACES.Take on the challenge of all three . " TRIS " games for the most nail-biting, hair-raising fun you've ever had. But be careful, the word " TRIS " is just another name for addictive.